Trial Review

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The cardiac autonomic control after aerobic exercise in pre-adolescents morbidly obese2588400

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Condition category

Condition code

Physical Medicine / Rehabilitation25898025898000

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Physiotherapy

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Diet and Nutrition25906625906600

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Obesity

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Intervention/exposure

Study type

Interventional

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Description of intervention(s) / exposure

1. Incremental effort test conducted on treadmill to determine the intensity considered level 13 of Borg's perceived effort scale by each volunteer. This test was undertaken 48h before the continuous aerobic exercise.2. Performing of 30min of continuous aerobic exercise running on treadmill at level 13 of Borg's scale. 3. Recording of heart beats after exercise for heart rate variability analysis

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Intervention code [1]2577590

Early detection / Screening

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Intervention code [2]2577600

Rehabilitation

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Comparator / control treatment

The control group was accompanied by us in another study conducted during one year, so we already knew these volunteers. In this present study the data also were collected during one year. The volunteers of this group were non-obese and sedentary pre-adolescents.

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Control group

Historical

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Outcomes

Primary outcome [1]2598340

The heart rate variability (HRV) was assessed by Polar S810 and analyzed by the software Polar Precision Performance. The data were analyzed by time and frequency domain. The frequency domain was obtained with the use Fast Fourier Transformed (FFT). All data were submitted to a filter (very strong) to avoid the artefacts and were obtained in stable conditions (rest and continuous dynamic exercise).

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Timepoint [1]2598340

The heart beats were recorded for HRV analysis during the 10 to 20min following 30 minutes of aerobic exercise.

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Secondary outcome [1]2686880

nil

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Timepoint [1]2686880

nil

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Eligibility

Key inclusion criteria

Ages between 9 and 11.All sedentaries.Non-obeses with body mass index (BMI) with percentil of National Center for Chronic Disease Prevention and Health Promotion. between 5 and 85.Morbid obeses with body mass index (BMI) with percentil of National Center for Chronic Disease Prevention and Health Promotion, over 97.

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Minimum age

9Years

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Maximum age

11Years

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Gender

Both males and females

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Can healthy volunteers participate?

No

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Key exclusion criteria

Use of any medications.Obesity caused by physical problems or by any detectable disease.

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Study design

Purpose of the study

Prevention

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Allocation to intervention

Non-randomised trial

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Procedure for enrolling a subject and allocating the treatment (allocation concealment
procedures)

The subjects were selected after the researcher conduct a lecture at their schools about the survey and explaining its importance. Then they were selected respecting the criteria for inclusion.

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Methods used to generate the sequence in which subjects will be randomised (sequence
generation)